SILVANA ANGELINA D'ORIO NISHIOKA
Projetos de Pesquisa
Unidades Organizacionais
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina - Médico
12 resultados
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conferenceObject Role of cardiac arrhythmias in sudden cardiac death in renal transplant candidates(2014) MARTINELLI FILHO, M.; PEIXOTO, G. L.; SILVA, R. T.; SIQUEIRA, S. F.; LIMA, J. J. G.; TEIXEIRA, R. A.; PEDROSA, A. A. A.; COSTA, R.; NISHIOKA, S. A. D.conferenceObject Role of impedance cardiography in predicting clinical near-term outcomes of patients with cardiac resynchronization therapy(2014) MARTINELLI FILHO, MMartino; PEIXOTO, G. L.; SIQUEIRA, S. F.; LENSI, M. M.; TRINDADE, R. H. L.; NISHIOKA, S. A. D.; TEIXEIRA, R. A.; PEDROSA, A. A. A.; COSTA, R.bookPart ECG com marca-passo artificial(2016) TEIXEIRA, Ricardo Alkmim; NISHIóKA, Silvana A. D'Ório; MARTINELLI FILHO, MartinoconferenceObject Chagas cardiomyopathy patients with pacemaker: predictors of left ventricular remodeling(2014) PEIXOTO, G.; MADIA, R. O.; SIQUEIRA, S. F.; LENSI, M. M.; TEIXEIRA, R. A.; NISHIOKA, S. A. D.; PEDROSA, A. A. A.; SACCAB, M. G. M.; COSTA, R.; MARTINELLI, M.conferenceObject Risk Factors for Sudden Death in Chagas Cardiomyopathy(2015) PEIXOTO, Giselle L.; SIQUEIRA, Sergio; NISHIOKA, Silvana; PEDROSA, Anisio; TEIXEIRA, Ricardo; COSTA, Roberto; MARTINELLI, MartinoconferenceObject Pacinchagas-crt: A Cohort Study of Cardiac Resynchronization Therapy in Patients With Chronic Chagas Cardiomyopathy(2015) MARTINELLI, Martino; PEIXOTO, Giselle L.; SIQUEIRA, Sergio; SANTOS, Johnny; MARTINS, Sergio; NISHIOKA, Silvana; PEDROSA, Anisio; TEIXEIRA, Ricardo; COSTA, Roberto- Evidence for cardiac safety and antiarrhythmic potential of chloroquine in systemic lupus erythematosus(2014) TEIXEIRA, Ricardo Alkmim; BORBA, Eduardo F.; PEDROSA, Anisio; NISHIOKA, Silvana; VIANA, Vilma S. T.; RAMIRES, Jose A.; KALIL-FILHO, Roberto; BONFA, Eloisa; MARTINELLI FILHO, MartinoTo perform a comprehensive evaluation of heart rhythm disorders and the influence of disease/therapy factors in a large systemic lupus erythematosus (SLE) cohort. Three hundred and seventeen consecutive patients of an ongoing electronic database protocol were evaluated by resting electrocardiogram and 142 were randomly selected for 24 h Holter monitoring for arrhythmia and conduction disturbances. The mean age was 40.2 +/- 12.1 years and disease duration was11.4 +/- 8.1 years. Chloroquine (CQ) therapy was identified in 69.7% with a mean use of 8.5 +/- 6.7 years. Electrocardiogram abnormalities were detected in 66 patients (20.8%): prolonged QTc/QTd (14.2%); bundle-branch block (2.5%); and atrioventricular block (AVB) (1.6%). Age was associated with AVB (P = 0.029) and prolonged QTc/QTd (P = 0.039) whereas anti-Ro/SS-A and Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) scores were not (P > 0.05). Chloroquine was negatively associated with AVB (P = 0.01) as was its longer use (6.1 +/- 6.9 vs. 1.0 +/- 2.5 years, P = 0.018). Time of CQ use was related with the absence of AVB [odds ratio (OR) = 0.103; 95% confidence interval (CI) = 0.011-0.934, P = 0.043] in multiple logistic regression. Holter monitoring revealed abnormalities in 121 patients (85.2%): supraventricular ectopies (63.4%) and tachyarrhythmia (18.3%); ventricular ectopies (45.8%). Atrial tachycardia/fibrillation (AT/AF) were associated with shorter CQ duration (7.05 +/- 7.99 vs. 3.63 +/- 5.02 years, P = 0.043) with a trend to less CQ use (P = 0.054), and older age (P < 0.001). Predictors of AT/AF in multiple logistic regression were age (OR = 1.115; 95% CI = 1.059-1.174, P < 0.001) and anti-Ro/SS-A (OR = 0.172; 95% CI = 0.047-0.629, P = 0.008). Chloroquine seems to play a protective role in the unexpected high rate of cardiac arrhythmias and conduction disturbances observed in SLE. Further studies are necessary to determine if this antiarrhythmic effect is due to the disease control or a direct effect of the drug.
- Predictors of death in chronic Chagas cardiomyopathy patients with pacemaker(2018) PEIXOTO, Giselle de Lima; MARTINELLI FILHO, Martino; SIQUEIRA, Sergio Freitas de; NISHIOKA, Silvana Angelina D'Orio; PEDROSA, Anisio Alexandre Andrade; TEIXEIRA, Ricardo Alkmim; COSTA, Roberto; KALIL FILHO, Roberto; RAMIRES, Jose Antonio FranchiniBackground: Chronic Chagas cardiomyopathy (CCC) is the most serious and frequent manifestation of Chagas disease. Conduction abnormalities and bradycardia requiring pacemaker are common. The aim of this study was to determine the rate and predictors of death in CCC patients with pacemaker. Methods: In this single-center prospective cohort study we assessed the outcome of 396 CCC patients with pacemaker, followed-up for at least 24 months. All patients underwent a clinical and device assessment, 12-lead electrocardiography and echocardiography. Results: During the median follow-up of 1.9 years (Interquartile range 1.6-2.4), there were 65 (16.4%) deaths, yielding an annual mortality rate of 8.6%. The major cause was sudden death (33.8%), followed by heart failure (HF), 32.3%. All the investigated variables were examined as potential predictors of death. The final multivariate logistic regression model included five independent variables: advanced HF functional class (OR [odds ratio] 6.71; 95% confidence interval [95% CI] 1.95-23.2; P = 0.003), renal disease (OR 5.71; 95% CI 1.80-18.0; P = 0.003), QRS >= 150 ms (OR 2.80; 95% CI 1.08-7.27; P = 0.034), left atrial enlargement (OR 2.75; 95% CI 1.09-6.95; P = 0.032) and left ventricular ejection fraction = 43% (OR 2.31; 95% CI 1.07-4.97; P = 0.032). Themodel had good discrimination, confirmed by bootstrap validation (optimism-adjusted c-statistic of 0.78) and the calibration curve showed a proper calibration (slope = 0.972). Conclusions: CCC patients with pacemaker have a high annual mortality rate despite that the pacemaker related variables were not predictors of death. The independent predictors of death can help us to identify the poor prognosis patients.
- A cohort study of cardiac resynchronization therapy in patients with chronic Chagas cardiomyopathy(2018) MARTINELLI FILHO, Martino; PEIXOTO, Giselle de Lima; SIQUEIRA, Rgio Freitas de; MARTINS, Sergio Augusto Mezzalira; NISHIOKA, Silvana Angelina D'orio; PEDROSA, Anisio Alexandre Andrade; TEIXEIRA, Ricardo Alkmim; SANTOS, Johnny Xavier dos; COSTA, Roberto; KALIL FILHO, Roberto; RAMIRES, Jose Antonio FranchiniAims Cardiac resynchronization therapy (CRT) is an established procedure for patients with heart failure. However, trials evaluating its efficacy did not include patients with chronic Chagas cardiomyopathy (CCC). We aimed to assess the role of CRT in a cohort of patients with CCC. Methods and results This retrospective study compared the outcomes of CCC patients who underwent CRT with those of dilated (DCM) and ischaemic cardiomyopathies (ICM). The primary endpoint was all-cause mortality and the secondary endpoints were the rate of non-advanced New York Heart Association (NYHA) class 12 months after CRT and echocardiographic changes evaluated at least 6 months after CRT. There were 115 patients in the CCC group, 177 with DCM, and 134 with ICM. The annual mortality rates were 25.4%, 10.4%, and 11.3%, respectively (P < 0.001). Multivariate analysis adjusted for potential confounders showed that the CCC group had a two-fold [hazard ratio 2.34 (1.47-3.71), P < 0.001] higher risk of death compared to the DCM group. The rate of non-advanced NYHA class 12 months after CRT was significantly higher in non-CCC groups than in the CCC group (DCM 74.0% vs. ICM 73.9% vs. 56.5%, P < 0.001). Chronic Chagas cardiomyopathy and ICM patients had no improvement in the echocardiographic evaluation, but patients in the DCM group had an increase in left ventricular ejection fraction and a decrease in left ventricular end-diastolic diameter. Conclusion This study showed that CCC patients submitted to CRT have worse prognosis compared to patients with DCM and ICM who undergo CRT. Studies comparing CCC patients with and without CRT are warranted.
conferenceObject Left ventricular remodeling behavior of patients with Chagas cardiomyopathy and pacemaker in a long-term follow-up(2014) PEIXOTO, G.; MARTINELLI, M.; SIQUEIRA, S. F.; MADIA, R. O.; LENSI, M. M.; NISHIOKA, S. A. D.; TEIXEIRA, R. A.; PEDROSA, A. A. A.; COSTA, R.